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较详细的介绍了设置刚性环的地下钢管在均布径向压力作用下管壁弹性稳定设计。给出设置刚性环的地下钢管的弹性稳定临界压力公式，介绍了用手算和电算方法计算刚性环的间距及刚性环间距、型号与管项复土高度关系。
The flexible design of the pipe wall under uniform radial pressure is introduced in more detail. The elastic steady critical pressure formula of the underground steel tube with rigid ring is given. The relationship between the rigid ring spacing and rigid ring spacing, the model number and the height of the subsidence of the tube is calculated by using the manual calculation method.